Quarter	Billions of US Dollars
1999-04-01	0.00660
1999-07-01	0.01834
1999-10-01	0.01726
2000-01-01	0.01642
2000-04-01	0.01677
2000-07-01	0.00542
2000-10-01	0.00574
2001-01-01	0.00544
2001-07-01	0.00792
2007-07-01	0.06345
2007-10-01	0.29892
2008-01-01	0.38737
2008-04-01	0.36513
2008-07-01	0.32709
2008-10-01	0.22152
2009-01-01	0.07718
2009-04-01	0.03153